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Chapter 2, Making Measurements
Check Even-Second Clock
Check Even-Second Clock
Overview Most CDMA transmitter tests require an Even-Second clock signal from the base
station in order to correlate the measurement. If you are receiving an error stating
Cannot correlate to input signal. Check setup. , you may have a
problem with your Even-Second clock signal. This Software utility allows you to
check for a valid clock signal from the base station.
Figure 24
NOTE: The test procedures outlined in this section require that you have already configured the
Test System as outlined in chapter 1, "Getting Started".
Requirements • This test requires that you temporarily connect the Even-Second clock signal to the
TRIGGER / QUALIFIER IN port of the Cellular Adapter.
NOTE: Be sure to return the Even-Second clock signal to the EVEN SECOND / SYNC IN port of
the Cellular Adapter when finished. The Software will prompt you to make this change.
H
H
SYNTH
REF IN
(Rear Panel)
EVEN SECOND/
SYNC IN
Time Base
Even-Second
Clock